单词	fin
释义	finfin /fɪn/ ●○○ noun Etymology ETYMOLOGYfin Origin: Old English finn 1 [countable] science, biology one of the thin body parts that a fish uses to swim2[countable] part of an airplane that sticks up at the back and helps it to fly smoothly3[countable] (also tailfin) a thin piece of metal that sticks out from something such as a car, as a decoration4[countable usually plural] a flipper
随便看	cosmopolitan cosmos cosset cost costar Costa Rica Costa Rican cost-benefit analysis cost-effective cost-effectively cost-effectiveness costing costliness costly cost of living cost-plus cost-push theory costume costume drama costume jewelry cosy cot cotangent coterie cotillion

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